摘要
基于Kjeldsen等提出的波形不对称性波浪破碎几何学指标,研究了波浪浅水变形作用下波形的不对称性,并通过实验采集的波面数据,运用最小二乘法拟合参数,综合2种不同的波浪变形情况,提出了含权重系数ω的不规则波浪的波形不对称性指标,并给出了浅水条件下权重系数ω的取值函数。在高分辨率波面数据采集技术的前提下,提出一种新型的、能够在近岸浅水条件下作为波浪破碎判据的波形不对称性波浪破碎指标,提高了其在实际工程中的应用价值。
The depth-induced asymmetry of a wave profile in shallow water was studied based on the wave breaking indices proposed by Kjeldsen et al.With the experimental data,extended geometric wave breaking indices formulas for irregular waves were proposed,which depend on a weight coefficient ω,with consideration of two types of wave transformation.The parameters of the indices were obtained by means of the least square error method.A function for determination of the value of ω is given for application in shallow water.With the data collecting techniques of the wave profile with high resolution,the wave breaking indices,which consider the asymmetry of wave profile,are applicable to judgment of wave breaking in near-shore shallow water,and have high application value in practical engineering.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第6期692-697,共6页
Journal of Hohai University(Natural Sciences)
基金
中央高校科研业务费专项(2011B06114)
关键词
波浪浅水变形
波形不对称性
波浪破碎指标
权重系数
wave transformation in shallow water
asymmetry of wave profile
wave breaking index
weight coefficient
